Stop-motion for combs.



C. E. JEWETT & F. FITZGERALD. STOP MOTION FOR COMBS.

APPLICATION FlLElj SEPT- 20, 1918- 1,299,187..

3 SHEETS-SHEET 1.

Patented Apr. 1, 1919.

C. E. JEWETT & F. FITZGERALD. STOP MOTION FOR comes.

APPLICATION FILED SEPT. 20. 1918. 1,299, 187. Patented Apr. .1, 1919.

3 SHEETSSHEET 2.

T 4 (2 fl C. 'E. IEWETT & F. FITZGERALD. STOP MOTION FOR comas.

- APPLICATION FILED SEPT 20, I918. v 1399,1871 Patented Apr. 1,1919.

3 SHEETS-SHEET 3.

llI/VE/VTOR CHARLES-E. JEWETT, OF NORTH UNITED STATES ATEN ion.

ANDOVER, AND FRED FITZGERALD, or LAWRENCE, MAssAoHUsEr'rs.

i sror-ivio'rroiv FOB ooMBs.

To all whom it may concern type.

Its purpose is to providemechanism which Be it known that, we, CHARLES E. J EWETT, a citizen of the-United States, residing at NorthAndover, in the county of Essex and State of Massachusetts, and FRED FITZGER- ALD, a citizen of'the- United States, residing at Lawrence, in the county of Essex and State of Massachusetts, have invented certain-new and useful Improvements in Stop- Motions for Combs, of which the following is a specification.

This lnvent on relates, to 'stop motions for worsted combs, particularly of the, circular will stop the comb when'a ribbon of sliver breaks between the-sliver delivery means, such as the drawing-0d rolls and drawingofi'apro'us, and the trumpet through which it passes on the way into the can coiler or.

other receiving device.

. The advantages of our device are that it "is simpleand can be easily attached, while it {is sensitive and; has a quick positive action and, after it has operated to stop the comb,-

fit resets itself automatically with no special attention from the operator.

f the sliver, between the sliver delivery means, and thetrumpet, are of such character that Besides this, the faller or feeler wires for each can readily be associated with and operated by a sultable arm connected wlth a 'drawin'gl-ofi' roll or an apron roll bearing. NVhen so connected, such faller wire will be somoved as to operate the conib'stopping mechanism when -the I roll or bearing to which'it is connected goes backward as, for instance, when an apron breaks and winds up on its roll.

Our device can be most readily attached to a comb in which the whole trumpet revolves, but where a stationary trumpet is used, We can leave the mouth of the trumpet revoluble.

stationary and make another part of it Figure 1 is a diagrammatic plan view of a circular comb, showing the large and small circles, the drawing-off aprons, trun'ipet,

' known parts common to such combs F shipper, and other parts necessary to understand our invention, butQo'ni'itting other well- I ig. 2 is an elevation, in perspective, showing the parts of the comb necessary to understand our invention. Fig. 3 is an ealarged'elevav Specification of Letters Patent.

, Application filed September 20, 1918.

ator operative therefrom.

larged elevatlon from the side of a trumpet Serial No. 254,921.

tion, in perspective, showing the trumpet and lts attachments together with the actu- Fig. is an enwith its attachments, the casing being shown partly-in section. F ig, 5 is a'verticai. and Fig. 6 a horizontal section of the actuator and trigger mechanism. Fig. 7 is a detail thereof, Fig. 8 is a diagrammaticside elevation showing a modification of ourfconstruction with plate 78 raised, andFig'f 9' is a view from the right of Fig. 8, thetruinpet being shown in section on line S'8,"a nfd plate 78 being shown as down. Fi v, 1,0'is an elevation showing the end of the arm from the apron roll bearings. Fig. 11 .is plan view in detail. of a modification of tlie end of such arm.

A represents the large circle of a circular comb, and B and C represent-the small circles thereof. D and E represent thewhole drawing-off rolls, .draWing-offaprons and delivery rolls, all of well-known construction, whereby the sliver Sis delivered-at the point 8 and the sliverR at the point 9 and Patented Apr. 1, 1919.

v of each sliver delivery means, including theis carried from such points into the'trumpefif T, all of which, as'shown in Figs. 1, 2,3, 8 and 9, 1s revoluble 1n a well-known manner.

, In such combs, the mouth of the trumpet T is substantially in line with and midway between the points 8 and 9. Each sliver S and R therefore makes substantially a rightangularturn at the trumpet.

In such combs, the trumpet T is ordinarily 'revoluble in a suitable casing, being driven bent up in such manner that; unless f -held back by the sliver R or S, gravity wi-llpcause them to drop forward. These faller wires are the means for detecting any breakin the sliver and starting in operationthe mechanism for stopping the comb-.' There'is a faller wire 35 or 36 for each silver ribbon R and S.

.will. cause this action, the faller is very sensitive but does not cause enough friction or dragon the sliver to cause it to break or otherwise interfere with its operation. We may provide a suitable stop,'such as 37, to limit the drop of the faller wire. 1

Such combs are provided with means for stopping and starting them, which it is not ates trigger necessary to describe, shown. as a shipper rod H having a handle 7. To operate such shipper, we provide trigger means, to be described, operative by connecting-rod K. As shown, when rod K is pushed: up, it opermechanism wliich releases means whereby the shipper is operated and the comb is stopped.

For convenience in attachment and adjustment, we show connecting rod K, of telescopic construction, comprising a tube 46 into which slips a rod 45. By means of ,a

set screw 47, which bears on rod 45, its position and the'length of K can be adjusted.

At the end of rod K we show a universal- 'joint 44 to which is connected afork M-comprising legs 40 and 41 connected by a bar '42,

as shown in Fig. 2. p i

The part 14 of frame F has grooves, such as 17, in which legs 40 and 41 slide, while the downward movement of fork M is limited I by 42striking the top of 14.

The bottom ends of 40 and 41 are so positioned that each is directly over the top end of a finger, such as 30, pivotal with a. faller 'wire or 36', when such faller wire and finger are not held back by the sliver. When a sliver, such as S, breaks, its faller wire drops forward and its finger moves under the end ofa leg or 41 of fork M, as shown by the full lines in Fig. 4.

. As' the faller and finger are both pivotal on a pin which passes through a slot in the finger, both can be raised, and when the faller is forward, such raising will lift the leg 4001' 41,- whicheveris above it, and thus fork M and rod K, operating the trigger mechanism to stop the comb.

As a means to ,so lift each finger, we prefer to attach to or cutin trumpet T a worm 20", and to support in suitable bearingsin frame F a shaft-22 which carries -a worm gear 21 in engagement with the worm 20, and also carries at each end one or more tappet cams 23 in such position that, when a faller Wire drops forward, thenose 31 of its corresponding finger 30 will drop into the path of a .cam 23 and will be lifted thereby as it rotates with trumpet T.

As a means adapted to so move the shipper as to stop the comb, we prefer to provide an actuator L separate from the sh pper rod. This actuator comprises a suitable guide tube 49 attached to the frame of the comb by hangers 4 and 5 and the rod 50,v

which slides inside tube 49. This rod50' is normally pressed-over to the rightby a compression spring 6 whereby a. do 2, carried mally held down by spring 54, so thatwhen rod 50 is moved against the sprin 6, the

nose ,53 of trigger 51 will spring own in front of sear55pivoted at 56. and connected at 57 by arm 48 to rod K. A stop 59 limits the downward movement of trigger 51.

\Vhen 56 and 55 are turnedby-48 to the dotted line position shown in Fig. 7, the

pressure of spring 6 causes nose 53 to slip over the flat 'face'of 55 and over stop 59,

' releasing rod 50.

When the sliver breaks and a faller wire drops forward, the mechanismincluding a linger, such as 30, and fork M engage, and

these, being operative by thetrumpet guide I through the connecting rod, release the trigger and thus the stopping spring 6, whereby the shipper, which is the means to stop the comb, is operated. T

9.0 and 91 indicate the aprons forming part .of one of the sliver delivery means, such as D 'or E, and 9,2 indicates an apron roll carried in a bearing 93 capable of movement backward when an'apron breaks and,

winds up either on roll 92 or roll 94, or when the sliver breaks and winds up on .roll'94.

When this happens, bearing 93 moves backward in a well-known manner.

Such aprons runon fluted rolls and wear 3 out very rapidly. When they become weak,

they should'be removed and replaced but, if

neglected, they break and wind up on the paratively small movement at that'end will mean a much greater movement at the free end, which is bent down at-98 and over at 99 behind one of the faller wires, such as 36,

as shown in Fig. 10. When an apron breaks and winds on aroll, forcing back the'bear- "which slides a tube 75 or T6. Tube 75 carries a .plate 77, and tube 76 a pIateTS, which extend across the trumpet and overlap each otlier.

IYhenthe sliver, such as 10, is unbroken, it holds back fwlre and extension 73 and thus. tube 75 and plate 77, and when the sliverbreaksthe wire, such as 71, drops for ward, carrying with 1t plate 78 into such po.-

sition that, as the pin T9, fixed to trumpet T,

it, lifts 7S and 76 as' shown in revolves, Fig. 8.

The connecting rod 'P has a joint 11 and connects with a slide rod 82 vertically slidable' in an extension 81 offrame F. shown in Fig. 9. a stop 83 allows the bottom end ofrod S2 to be held in position just over where plates 78 and 77 will be when their respective faller wires drop forward.

In Figs. 8.'a n d 9, G0 is the shipper rod, supported in 'bearmgs til-61, having a dog '62 between -which anda bearing (31 is a spring 63, the tendenc of which is to throw the shippertothe left and stop the comb.

The top of rod P is bent over at 61 to fo 'm a latch or triggeravhich, when rod P .is down, holds back dog 62 andshipper 60, but when rod P- is pushed up, releases both and allows thecomb to stop. Fig. .8 shows rod P up, and Fig. 9 shows it down. I Y

As shown in Fig. 4, especially where the mouth of the trumpet revolvesQwe prefer to use a guard G attached to frame F. extending out around the mouth end of the trum pet to prevent the sliver from getting caught between the revolving mouth and its bearing. On some combs, the: sliverreceiving trumpet does not revolve. To adapt such a trump'et for our attachment," we cutit off along the line X, shown in Fig. 1, so as to divide it into the mouth part 18 and the other part 19. the frame F by any suitable means. and the other part 19 we make revoluble in the bearings 13 and 11 and attach to it a pulle' '12 and cut in it the worm 20 as in the firststead of pivoting the rods such as 95, we

' 111921115 Ollt Of action.

The mouth part we-fi-x in the ends of each at a suitable angle,"as shown at 100 and 101,- whereby when the hearing, such as 93, moves away, instead-of moving rod pivotally, it pulls it to the dotted. line position whereby its adjacent merelv attach each to abearingand bend faller'wire, 36 or B5, is pushed Over tothe dotted line position as shown;

ll'ith our device, when a break occurs, it

is necessaryonly to throwover the shipper '7 with one hand and. feed the sliver into the:

1.111 a comb having a movable shipper rod for starting and stopping, a revoluble trumpet guide, means to revolve the trumpet guide while the comb isrun'ning, and one or more, sets of sliver delivery means.- the combination of a fallerwire so pivoted as to be held back by the sliver as it passes from a sliver deliver means to the trumpet,

a finger carried by said wire, a cam r evoluble by the trumpet in such position as to engage and move the finger when the faller wire drops forward, means adapted to so move the shipper as'to stop the comb, trigger mechanism to hold such comb stopping ,and a connecting rod between thetrigger. mechanism and the finger.

2. In a comb having a movable shipper rod for starting and stopping, arevoluble trumpet guide. means to revolve the trumpet guidewhile the comb is running, and one or more setsof sliver delivery means each including an apronand an apron roll carried in bearings capable of movement backward when the apron breaks, the combination of a faller wire so pivoted as to be held back by the sliver as it passes from a. sliver delivery means to the trumpet, a finger carried by said wire, a cam revoluble by the trumpet in such position as to engage and move the finger when the faller vwire drops forward, means adapted to so ing moves backward.

3. In a comb having means for stopping and starting, a trumpet guide revoluble with the comb, /and sliver delivery means. the combination of a faller wire so pivoted as to be held back by thesliver as it passes from the sliver delivery means to the trumpet guide, and mechanism engageable when the faller wire drops forward and op- -bearings capable of movement backward when the apron breaks, the combination of a faller wire so pivoted as to be held back by. the sliver as it passes from the sliver delivery. means to the trumpet guide, and mechanism engageable when the faller wile drops forward and operative by the trumpet 1,5 guide to cause the stopping means to stop 1 the comb, togetherwith an arm so attached to an apron roll bearmg that it causes the taller w1re to -1nove forward when such bearing moves backward.

In a comb having means for stopping and starting, a sliver receiving guide part of which is revoluble with the comb, and sliver delivery means, the combination of a faller wire so pivoted as to be held back the sliver as it passes from the sliver de- "liver means to the sliver receivin uide t D b 7 and mechanism engageable when the faller wire drops forward andoperative by the" revoluble part -of the sliver receiving guide to cause the stopping means tovstop the comb.

6. In a comb having. means for stopping. and starting, a sliver recewmg guide part of which is revoluble with the comb, and

sliver delivery means, including an apron roll carried in bearings capable of movement backward, the combination of a taller wire so pivoted as to beheld back by the sliver as it passes from the sliver delivery means to the sliver receiving guide, and mechanism engageable when the faller wire drops forward and operative by the revoluble part of-the sliver receiving guide to cause the stopping means to stop the comb,

together with an arm so attached to an apron roll bearing that it causes "the taller wire to move forward when such bearing moves backward.

In testimony-whereof we have affixed-our signatures. I

CHARLES E. JEWETT FRED n zeaRampv 

